Igbo people, also referred to as the Ibo(e), Ebo(e), Eboans or Heebo (Igbo: Ndị Igbọ) are an ethnic group living chiefly in southeastern Nigeria. They speak Igbo, which includes various Igboid languages and dialects; today, a majority of them speak English alongside Igbo as a result of British colonialism. Igbo people are one of the largest and most influential ethnic groups in Nigeria. Due to the effects of migration and the Atlantic slave trade, there are descendant ethnic Igbo populations in countries such as Cameroon and Equatorial Guinea, as well as outside Africa. Their exact population outside Africa is unknown, but today many African Americans and Afro Caribbeans are of Igbo descent. In rural areas in Africa, the Igbo are mostly farmers. Their most important crop is the yam; celebrations are held annually to celebrate its harvesting. Other staple crops include cassava and taro.

Before British colonialism, the Igbo were a politically fragmented group. There were variations in culture such as in art styles, attire and religious practices. Various subgroups were organized by clan, lineage, village affiliation, and dialect. There were not many centralized chiefdoms, hereditary aristocracy, or kingship customs except in kingdoms such as those of the Nri, Arochukwu, Agbor and Onitsha. This political system changed significantly under British colonialism in the 19th century; Eze (kings) were introduced into most local communities by Frederick Lugard as "Warrant Chiefs". The Igbo became overwhelmingly Christian under colonization. Chinua Achebe's Things Fall Apart is one of the most popular novels to depict Igbo culture and changes under colonialism.